31106520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1305

約数の個数: 96

約数和(自身を含む): 102604320

約数和(自身を除く): 71497800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 852, 1065, 1217, 1278, 1420, 1704, 2130, 2434, 2556, 2840, 3195, 3651, 4260, 4868, 5112, 6085, 6390, 7302, 8520, 9736, 10953, 12170, 12780, 14604, 18255, 21906, 24340, 25560, 29208, 36510, 43812, 48680, 54765, 73020, 86407, 87624, 109530, 146040, 172814, 219060, 259221, 345628, 432035, 438120, 518442, 691256, 777663, 864070, 1036884, 1296105, 1555326, 1728140, 2073768, 2592210, 3110652, 3456280, 3888315, 5184420, 6221304, 7776630, 10368840, 15553260, 31106520]

約数ペア:

[(1, 31106520), (2, 15553260), (3, 10368840), (4, 7776630), (5, 6221304), (6, 5184420), (8, 3888315), (9, 3456280), (10, 3110652), (12, 2592210), (15, 2073768), (18, 1728140), (20, 1555326), (24, 1296105), (30, 1036884), (36, 864070), (40, 777663), (45, 691256), (60, 518442), (71, 438120), (72, 432035), (90, 345628), (120, 259221), (142, 219060), (180, 172814), (213, 146040), (284, 109530), (355, 87624), (360, 86407), (426, 73020), (568, 54765), (639, 48680), (710, 43812), (852, 36510), (1065, 29208), (1217, 25560), (1278, 24340), (1420, 21906), (1704, 18255), (2130, 14604), (2434, 12780), (2556, 12170), (2840, 10953), (3195, 9736), (3651, 8520), (4260, 7302), (4868, 6390), (5112, 6085)]